Revert "example: android: Fix display scaling issue on some devices"

This reverts commit 36814da.

Author: YuKongA

composeApp/src/androidMain/kotlin/top/yukonga/miuix/uitest/MainActivity.kt

@@ -18,14 +18,6 @@ class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
-        // Fix display scaling issue on some devices, such as Xiaomi 15 / Xiaomi 15 Pro
-        val metrics = resources.displayMetrics
-        val density = metrics.density
-        val targetDensity = Math.round(density)
-        metrics.density = targetDensity.toFloat()
-        metrics.densityDpi = targetDensity * 160
-        resources.displayMetrics.setTo(metrics)
-
         setContent {
             val colorMode = remember { mutableIntStateOf(0) }
             val darkMode = colorMode.intValue == 2 || (isSystemInDarkTheme() && colorMode.intValue == 0)